Tool-handle.



PATBNTED AUG. 22, 1905.

E. A. SGHADE. TOOL HANDLE.

V .l v/y A TTOHNEY UNTTE STATES PATENT OFFICE EDMUND A. SCHADE, OF NEWVBRITAIN, CONNECTICUT, ASSIGNOR TO STANLEY RULE & LEVEL COMPANY, OF NEWBRITAIN, CONNECTI- CUT, A CORPORATION OF CONNECTICUT.

TOOL-HANDLE.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed March 7, 1903. Serial No. 146,643.

To ctZZ whom it may concern:

Be it known that I, EDMUND A. Sermon, a citizen of the United States,residing at New Britain, in the county of Hartford, State ofConnecticut, have invented certain new and useful Improvements inTool-Handles, of which the following is a full, clear, and exactdescription.

My invention relates to means for securing tool-handles in place. Thehandles particularly referred to herein are such handles as are appliedto hand-tools, including such instruments as awls, ice-picks, andscrew-d rivers.

The object of this invention is to provide a simple means foreffectively uniting the toolshank with the handle-body, so that asuiiicient resistance will be provided to prevent one twisting on or inthe other under all conditions of ordinary and intended use.

In the accompanying drawings, Figure 1 is a side elevation of one formof tool (a screwdriver) fitted with a handle after the manner of myinvention, the handle being shown in section. Fig. 2 is a fragmentaryportion of the shank of the handle. Fig. 3 is a crosssection on theplane of the line 3 3 of Fig. 1.

A is the main body of the handle, which may be of any suitable shape andmay be longitudinally bored to receive the shank B. Upon the shank B andwithin the main body A. are located laterally-projecting wings DD. Inthis particular instance the wings are formed on opposite sides of theshank B by displacing some of the metal, as between dies, causing saidwings to assume the shape of a bulging lip which stands above thesurface of the shank, so as to project into the hahdlebody A. It isdesirable that a series of these projecting wings be formed in line, andto that end D D is a second set and D D a third set. It will be observedthat the wings D extend outwardfrom the shank B slightly more than theprojecting wings D. So, also, the projecting wings D stand outward fromthe shank slightly more than the projecting wings D. The smallest of theprojecting wings D are arranged toward that end of the shank which isfirst introduced into the handlebody A. The bore of the handlebody A isof such a size as to snugly receive the shank B. When the parts areassembled, the shank is driven into the handle B in a direction to causethe smallest projecting wings to first encounter the interior wall ofthe body A. As the shank is driven in, the smallest wing D serves to cutits way in and partially form the cavity into which the next larger wingis to be driven. For example, in the drawings, Fig. 1, the shank isdriven in from the top of the handle, so that the wing D first entersthe shank and carves its way in. Then the wing D enters the passage thuspartially formed for it, at the same time enlarging the same slightly.Then the wing D enters the passage and enlarges it still more. While thenumber of these projections at any one section of the shank isimmaterial, it is desirable, and, in fact, essential to some tools thatthere be a plurality of them. It is preferable that they be arranged ina series graduall y increasing in size, as shown in the drawings, sothat when the body A and the shank B are assembled a permanent union maybe effected.

E is a ferrule which may be placed upon the inner end of the handle-bodyA, and F is a pin which may be passed through the ferrule, body, andshank, said pin serving to supplement the function of the wings D inpreventing the twisting of the body on the shank and also serving toprevent the ferrule E from slipping oif.

G is ahead which may be provided at the outer end of the shank B.

It should be observed that in the construction shown in the drawings theshank is introduced into the handle-body A prior to the formation of theenlarged screw-driver end C. Of course if the projections l) D D werearranged in reverse order the shank would be driven into the handle inthe opposite direction and the head G would be formed last.

It should be understood that the head G is not absolutely essential, noris it essential that the operative end of the tool should be enlarged.For example, in the case of an icepick the operative end of the toolwould be pointed. Hence it will be seen that the particular shape of thetool itself is immaterial.

The projecting wings are preferably formed integrally with the shank B,and their presence within the handle-body A provides sufficientresistance to prevent the handle twisting under all circumstancesincidental to the ordinary and proper use of the tool. One advantage ofproviding a plurality of Wings instead of one is that in some toolsWhere it is necessary to provide substantial resistance to the twist toprovide only one wing would require that wing to be made of such a sizeas to possibly break or split the handle in forcing the shank intoplace. By the plurality of Wings in line one partially carves the Wayfor the next and danger of breaking or splitting the body is avoided.While it is not absolutely essential that the size of the projections begraded, it is nevertheless preferable for the reasons aforesaid.

As the shank is being driven in place it will be noted that the materialof the handle which is displaced by the Wedging action of the wings justbefore they reach their final position is allowed to spring back intothe spaces left behind them when finally seated. This relieves thehandle from a great deal of the permanent strain which would otherwiseoccur and might split the handle, and it holds the handle fromlongitudinal displacement in either direction.

What I claim is 1. In an article of the character described, thecombination of a wooden handle-body, a metal shank having a series oflateral projections graded in size toward the head.

2. In an article of the character described,

a shank, a series of pairs of projecting Wings graded in size and havinga plurality in longitudinal alinement, a handle-body fitted to saidshank said projecting wings extending into said handle-body.

3. In an article of the character described, a shank, a series ofprojecting Wings eXtend ing therefrom and arranged in longitudinalalinement and graded in size as to the extent of their projection, and ahandle-body fitted to said shank, said wings extending into the materialof said handle-body.

4. In an article of the character described, the combination of a woodenhandle-body and a metal shank having a series of pairs of lateralprojections graded in size and in longitudinal alinement.

5. An article of the character described comprising the combination of ahandle body formed with a longitudinal passage and a centrally-locatedrecess at the head thereof, a metal shank substantially of the diameterof said passage and having a series of lateral projections graded insize toward the head and an enlarged head fitting into said recess.

EDMUND A. SGHADE.

Witnesses:

H. S. WALTER, R. C. MITCHELL.

